Taking all the obvious unix-like parts out of it really is required to get your grandmother to use it on her netbook. Think about explaining
What the censor is this bullcensor? Grandma never learned about C:\Program Files. Why the censor would she need to learn about
Linux, the OS, generally includes Apache.
Linux, the OS, most generally does *not* include Apache. The default installation doesn't, and only web servers install a web server separately, which in most cases is indeed Apache but it can be lighttpd or a whole range of others too. But my desktop has never ever even seen a trace of Apache, as will most other Ubuntu Desktop installations; it would be too fast an assumption to say Linux installations generally include Apache.
Next to that: On most installations, Apache runs as its own user with all privileges dropped (most distro's do this by default). Therefore, it will be generally impossible to actually intrude the system, which *does* happen with Windows viruses, trojans and worms. It will be severely handicapped and less able to do damage than a standard Windows virus.
Say "twenty-three-skiddoo" to logout.